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The grades with a W designation are considered Winter-grades, and denote an engine oil's low-temperature properties, while non-winter grades denote an engine oil's properties at the operating temperature of an engine. [5] The SAE 8 through SAE 16 viscosity grades describe oils that can improve fuel economy through reduced hydrodynamic friction ...
Motor oil, engine oil, or engine lubricant is any one of various substances used for the lubrication of internal combustion engines. They typically consist of base oils enhanced with various additives, particularly antiwear additives , detergents, dispersants , and, for multi-grade oils, viscosity index improvers .
U.S. Energy Information Administration: World Crude Oil Prices Archived 2008-11-10 at the Wayback Machine; BP Crude Grades; Intertek: Crude Oil Grades and Types; MeGlobalOil: Carriage of Heavy Grade Oil; Statoil.com: Crude oil assays; EnergyIntel.com: The Crude Oils and their Key Characteristics; Capline system crude oil properties and quality ...
JASO establishes standards for various types of engine oil, including the highest grade for two-stroke engines, which is JASO FD, and JASO MA for four-stroke engines, such as those found in motorcycles. JASO is a part of the Society of Automotive Engineers of Japan (財団法人自動車技術会, Zaidan-hōjin Jidōsha Gijutsukai, JSAE).
Historically, there were two different oil types recommended for usage in different weather conditions. As an example, with winter oils and cold starting the engines, and with temperature ranges from, say, −30 °C to 0 °C, a 5 weight oil would be pumpable at the very low temperatures and the generally cooler engine operating temperatures.
The oil is dyed blue to make it easier to recognize in the gasoline. It appears black in this bottle because it is not diluted. Two-stroke oil (also referred to as two-cycle oil, 2-cycle oil, 2T oil, or 2-stroke oil) is a special type of motor oil intended for use in crankcase compression two-stroke engines, typical of small gasoline-powered ...
Motor oil – Lubricant used for lubrication of internal combustion engines; Oil analysis – Laboratory analysis of an oil based lubricant's properties and contaminants; Penetrating oil – Low-viscosity oil; Tribology – Science and engineering of interacting surfaces in relative motion
Grades 0, 1 and 2 are used in highly loaded gearing. Grades 1 through 4 are often used in rolling contact bearings . Greases with a higher number are firmer, tend to stay in place and are a good choice when leakage is a concern.
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